Function prefixLen

data/codebrowser.js:263–271

( s1 , s2)

    //compute the length of the common prefix between two strings
    // duplicated indexscript.js
    var prefixLen = function( s1 , s2) {
        var maxMatchLen = Math.min(s1.length, s2.length);
        var res = -1;
        while (++res < maxMatchLen) {
            if (s1.charAt(res) != s2.charAt(res))
                break;
        }
        return res * 256 + 256 - s1.length;
    }

    function absoluteUrl(relative) {
        var a = document.createElement('a');